HESI LPN
Pediatric Practice Exam HESI
1. A 3-month-old infant has been hospitalized with respiratory syncytial virus (RSV). What is the priority intervention?
- A. Administering an antiviral agent
- B. Clustering care to conserve energy
- C. Offering oral fluids to promote hydration
- D. Providing an antitussive agent when necessary
Correct answer: B
Rationale: The priority intervention for a 3-month-old infant hospitalized with respiratory syncytial virus (RSV) is clustering care to conserve energy. Infants with RSV often struggle to breathe and require rest periods to recover. Clustering care involves organizing nursing activities to allow for rest intervals, reducing the infant's energy expenditure and aiding recovery. Administering antiviral agents is not the primary intervention for RSV since it is a viral infection, and antiviral medications may not be effective against RSV. While offering oral fluids is crucial for hydration, it may not be the priority when the infant is having respiratory difficulties. Providing an antitussive agent when necessary can help with coughing but is not the priority intervention for managing RSV in this scenario.
2. A child with a diagnosis of gastroenteritis is admitted to the hospital. What is the priority nursing intervention?
- A. Monitoring fluid and electrolyte balance
- B. Encouraging regular exercise
- C. Administering antipyretics
- D. Administering antibiotics
Correct answer: A
Rationale: The correct answer is monitoring fluid and electrolyte balance. Gastroenteritis is characterized by inflammation of the gastrointestinal tract, leading to fluid loss. Maintaining fluid and electrolyte balance is essential in managing gastroenteritis to prevent dehydration and electrolyte imbalances. Encouraging regular exercise (Choice B) is not a priority in the acute phase of gastroenteritis when the focus is on rehydration and symptom management. Administering antipyretics (Choice C) may be considered for fever management but is not the priority over monitoring fluid and electrolyte balance. Administering antibiotics (Choice D) is not routinely indicated for viral gastroenteritis, which is a common cause of the condition in children.
3. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct answer: A
Rationale: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.
4. When preparing a 2-year-old child for surgery, what preoperative teaching should be provided to help them understand the procedure?
- A. Explaining the procedure in simple terms
- B. Using a doll to demonstrate the procedure
- C. Showing pictures of the hospital environment
- D. Allowing the child to play with medical equipment
Correct answer: B
Rationale: The correct preoperative teaching for a 2-year-old child undergoing surgery involves using a doll to demonstrate the procedure. This method helps the child understand what to expect in a non-threatening and visual way, making the experience less intimidating. Explaining the procedure in simple terms (Choice A) may not effectively convey the details to a young child. Showing pictures of the hospital environment (Choice C) may not directly address the surgical procedure itself. Allowing the child to play with medical equipment (Choice D) can be unsafe and may not effectively prepare the child for the surgery.
5. What foods are appropriate for a 30-month-old toddler on a regular diet?
- A. Hamburger with bun and grapes
- B. Chicken fingers and french fries
- C. Hot dog with bun and potato chips
- D. Macaroni and cheese and Cheerios
Correct answer: D
Rationale: Macaroni and cheese and Cheerios are appropriate choices for a 30-month-old toddler on a regular diet. These foods are easy to chew, digest, and are generally well-liked by toddlers. Option A, a hamburger with bun and grapes, may be difficult for a toddler to handle due to the size of the hamburger and grapes pose a choking hazard. Option B, chicken fingers and french fries, may be too greasy and processed for a toddler's developing digestive system. Option C, hot dog with bun and potato chips, is also not ideal as hot dogs can be a choking hazard and potato chips are high in salt and may not provide adequate nutrition.
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